How to Select a Compliant API 675 Chemical Injection Pump

The core of an API 675 chemical injection pump lies in its metering accuracy, safety, and ability to withstand highly corrosive / high pressure media.

1. What is API 675?

API 675 is an industry standard published by the American Petroleum Institute (API) governing the design and manufacture of reciprocating positive displacement pumps. Its full title is “Positive Displacement Pumps—Controlled Volume for Petroleum, Chemical, and Gas Industry Services.” It establishes clear specifications regarding structural strength, material requirements, performance criteria, and testing standards for these pumps.

2. Why Choose Pumps Compliant with the API 675 Standard?

Chemical injection pumps are primarily used in the petroleum, chemical, and oil and gas industries to continuously transport highly corrosive, flammable, and explosive chemical media. Any leaks or other issues during operation could lead to safety incidents. Pumps compliant with the API 675 standard undergo rigorous scrutiny from design and manufacturing through factory testing, ensuring stable operation under complex and harsh conditions and meeting the industry’s core requirements for safety and precision.

3. API 675 Technical Specifications

The API 675 standard requires precise and controllable chemical injection rates to prevent injection deviations from affecting production, quality, and safety. At the same time, it imposes strict requirements on the materials of the pump’s pressure-bearing components and the design of sealing structures to enhance the pump’s corrosion resistance and leak-proof capabilities. Furthermore, the hydraulic end is the core component of a chemical injection pump. It is necessary to select corrosion-resistant alloys of appropriate grades based on the characteristics of different media and to meet pressure margin requirements, ensuring that corrosion perforation or structural damage does not occur during long-term high pressure delivery.

A chemical injection pump compliant with API 675 standards can enhance project efficiency, reduce long-term operational and maintenance costs as well as safety risks, and meet the requirements for transporting hazardous media in the oil and gas and chemical industries. Elephant Machinery specializes in the manufacture of metering pumps, reciprocating plunger pumps, and piston pumps, and can also provide customized turnkey solutions.